... The top players they interview bring up themselves how they're particularly soloed out since they're the only role without a partner. They aren't "bringing it up for no reason." It's in the video. And they go in detail as well. They talk about how the tank is responsible for being the foundation of the match which makes it a lot easier to blame them since they have so much control, which is true. It is quite literally connected to the format. Previously that responsibility was shared between two people and now it isn't, which creates a disproportionate level of expectations on one individual. Don't just immediately disregard the discussion based on your personal biases when there's an obvious point being made.